LAHORE-Special Assistant to Prime Minister Fawad Chaudhary called for a judicial probe into deaths caused by the negligence of the Health Department Punjab during the last two years."Chief Minister Shahbaz Sharif is responsible for the deaths, therefore, a case must be registered against him ", he said while addressing a news conference at Lahore Press Club on Thursday.  He said as many as 500 people had lost their lives owing to the failure of the Punjab Health Department.  Over 137 heart patients, he said, had fallen victim to spurious medicine  while 890 became disabled.